Glossary
A clear reference for the acronyms and terminology used across our website and in the wider communications industry.
Want to decode an acronym or term? Type it in below to find the definition.
B
Bandwidth
The amount of data that can be carried over a channel or frequency range. In radio terms, it describes how much space a signal takes up on the spectrum.
Bearers
Communication paths like High Frequency (HF), Very High Frequency (VHF), Ultra High Frequency (UHF), Long-Term Evolution (LTE), or satellite.
BLOS (Beyond Line of Sight)
Long-range communication that doesn’t rely on towers or clear sightlines.
Broadband
High-capacity networks (LTE, satellite, fibre) often integrated with radios to carry both voice and data in critical communications.
C
CB Radio (Citizen Band Radio)
A short-range, two-way radio service that anyone can use without a licence. CB radios operate on fixed channels (usually around 27 MHz) and are popular for vehicle-to-vehicle or local communication — for example, between trucks, farm equipment, or work crews.
D
DC (Direct Current)
A type of electrical current that flows in one direction. Radios and vehicle systems often run on DC power from batteries.
DMR (Digital Mobile Radio)
An open, international standard for digital two-way radios. DMR offers clear audio, extended range, improved security, and features like text messaging and location tracking compared to traditional analogue systems.
DSP (Digital Signal Processing)
The technology inside modern radios that converts voice and data into digital form, processes it to reduce interference, boost clarity, and support features like compression and encryption. In plain terms, it makes your comms clearer, smarter, and more reliable in tough environments.
DV (Digital Voice)
A feature in modern High Frequency (HF) radios. It converts speech into a digital signal to reduce background noise and improve clarity, especially in remote or noisy environments. The result is clearer voice communication, fewer repeats, and more reliable contact in tough conditions.
E
Ethernet
A family of wired networking technologies used to connect devices in local (LAN), metro (MAN), and wide area networks (WAN). In radio systems, Ethernet links radios, consoles, SmartPATCH, and other IP-based gear for RoIP and dispatch connectivity. In comms setups, Ethernet links SmartPATCH, consoles, and radios to enable RoIP (Radio over IP). It’s reliable, fast, and widely supported across commercial and critical field gear.
G
Geofencing
A system that uses GPS or GNSS to create a virtual boundary. Radios or vehicles can automatically switch modes, send alerts, or manage power when entering or leaving a zone.
GNSS (Global Navigation Satellite System)
Satellite-based positioning systems like GPS, GLONASS, and Galileo. Used in radios, SmartPATCH, and vehicle systems for accurate tracking.
GPS (Global Positioning System)
A U.S.-owned satellite network providing accurate global positioning, navigation, and timing.
GRN (Government Radio Network)
A secure, trunked digital radio network used by emergency services in Australian states. Ensures interoperability between agencies.
H
HF Radio (High Frequency Radio)
Operates on long-range frequencies (3–30 MHz) and can travel great distances by bouncing signals off the ionosphere. This makes it ideal for remote and off-grid operations, where there’s no mobile or internet coverage.
I
IP (Internet Protocol)
The standard for sending data across networks. Used in radio communications to link RoIP systems, dispatch consoles, and remote sites.
IP Rating (Ingress Protection)
Indicates how well equipment is protected against dust and water. For example, IP66 means dust-tight and resistant to powerful water jets.
IoT (Internet of Things)
A network of connected devices that share data in real time. In critical comms, IoT sensors use radio or satellite links for monitoring and alerts.
L
LAN (Local Area Network)
A network connecting devices within a limited area, such as a control room or vehicle. Enables fast, secure communication between radios, consoles, and servers.
LEO Satellites (Low Earth Orbit Satellites)
Orbit the Earth at low altitudes than traditional geostationary satellites. This means faster response times and stronger signal quality, making LEO ideal for real-time voice, data, and tracking applications in remote or hard-to-reach areas.
LMR (Land Mobile Radio)
Two-way radios used for public safety, transport, and utilities. Includes both VHF and UHF systems.
LOS (Line of Sight)
Direct, line-of-sight communication — reliable, fast, but limited by obstacles and distance.
LRDR (Long Range Digital Radio)
When we use LRDR, we are referring to a modernised version of HF Radio that delivers long-distance communications with clear Digital Voice.
LTE (Long Term Evolution)
Another name for 4G and 5G mobile networks. Provides high-speed voice and data when in coverage.
M
MAN (Metropolitan Area Network)
A network covering a wider urban area, typically linking multiple LANs across a city or large site. Used in transport, mining, or utility infrastructure.
P
PMR (Professional Mobile Radio)
Also known as Private Mobile Radio refers to a two-way person-to-person radio communication system that operates under the Land Mobile Service using VHF and UHF frequencies for voice transmission between portable, mobile, base, and dispatch radios.
PoC/PTToC (Push-to-Talk over Cellular)
Instead of using traditional radio frequencies, voice messages are transmitted over existing cellular and IP networks, using smartphones or dedicated PoC devices.
PTT (Push-to-Talk)
A feature that lets users press a button to instantly transmit voice over radio. PTT is the fastest way to communicate in the field, used across handhelds, vehicle units, and dispatch systems for real-time, one-to-many contact.
R
Repeater
A device that receives a radio signal and re-transmits it to extend coverage. Commonly used in UHF and VHF networks to overcome distance or obstacles such as terrain and buildings.
RF (Radio Frequency)
The part of the electromagnetic spectrum used for wireless communication. It covers a wide range of signals from very low frequencies up to microwave bands, including HF, VHF, and UHF used in radio systems.
RoIP (Radio over IP)
Technology that extends radio networks over IP networks (like the internet), allowing dispatchers and remote teams to connect across regions.
S
Satellite Communications
Provides voice and data connectivity in areas beyond terrestrial network coverage. Essential for maritime, defence, and remote operations.
Satellite Phone
A mobile phone that connects directly to satellites instead of cell towers, ensuring communication in remote and off-grid areas.
SCADA (Supervisory Control and Data Acquisition)
A system used in utilities, transport, and industry to monitor and control equipment remotely via radio or IP networks.
SmartPATCH
A Nexion device that integrates HF, VHF, UHF, LTE, and satellite into one handset and interface for seamless, unified communication.
T
Transceiver
A device that can both transmit and receive radio signals. All two-way radios are transceivers.
Trunked Radio
A radio system that dynamically assigns users to a pool of shared channels, improving efficiency. Common in government and emergency networks.
Two-Way Radio
A communication device that can both transmit and receive voice. Used across industries for instant, reliable field communication.
U
UHF Radio (Ultra High Frequency Radio)
operate between 300–3,000 MHz and are designed for short-range, high-clarity communication. Ideal for environments where signals need to cut though obstacles. Common in handheld radios and vehicle units for emergency services and logistics.
V
VaaN (Vehicle-as-a-Node)
A Mobile Communications solution that transforms a vehicle into a roaming comms hub. It integrates HF, VHF, UHF, LTE, and satellite into one interface for continuous field connectivity. Explore our Vaan solution.
VHF Radio (Very High Frequency Radio)
Operate between 30–300 MHz and are ideal for medium-range, line-of-sight communication. They perform best in open environments such as agricultural operations, transport corridors, and coastal areas, where terrain is relatively clear.
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B
Bandwidth
The amount of data that can be carried over a channel or frequency range. In radio terms, it describes how much space a signal takes up on the spectrum.
Bearers
Communication paths like High Frequency (HF), Very High Frequency (VHF), Ultra High Frequency (UHF), Long-Term Evolution (LTE), or satellite.
BLOS (Beyond Line of Sight)
Long-range communication that doesn’t rely on towers or clear sightlines.
Broadband
High-capacity networks (LTE, satellite, fibre) often integrated with radios to carry both voice and data in critical communications.
C
CB Radio (Citizen Band Radio)
A short-range, two-way radio service that anyone can use without a licence. CB radios operate on fixed channels (usually around 27 MHz) and are popular for vehicle-to-vehicle or local communication — for example, between trucks, farm equipment, or work crews.
D
DC (Direct Current)
A type of electrical current that flows in one direction. Radios and vehicle systems often run on DC power from batteries.
DMR (Digital Mobile Radio)
An open, international standard for digital two-way radios. DMR offers clear audio, extended range, improved security, and features like text messaging and location tracking compared to traditional analogue systems.
DSP (Digital Signal Processing)
The technology inside modern radios that converts voice and data into digital form, processes it to reduce interference, boost clarity, and support features like compression and encryption. In plain terms, it makes your comms clearer, smarter, and more reliable in tough environments.
DV (Digital Voice)
A feature in modern High Frequency (HF) radios. It converts speech into a digital signal to reduce background noise and improve clarity, especially in remote or noisy environments. The result is clearer voice communication, fewer repeats, and more reliable contact in tough conditions.
E
Ethernet
A family of wired networking technologies used to connect devices in local (LAN), metro (MAN), and wide area networks (WAN). In radio systems, Ethernet links radios, consoles, SmartPATCH, and other IP-based gear for RoIP and dispatch connectivity. In comms setups, Ethernet links SmartPATCH, consoles, and radios to enable RoIP (Radio over IP). It’s reliable, fast, and widely supported across commercial and critical field gear.
G
Geofencing
A system that uses GPS or GNSS to create a virtual boundary. Radios or vehicles can automatically switch modes, send alerts, or manage power when entering or leaving a zone.
GNSS (Global Navigation Satellite System)
Satellite-based positioning systems like GPS, GLONASS, and Galileo. Used in radios, SmartPATCH, and vehicle systems for accurate tracking.
GPS (Global Positioning System)
A U.S.-owned satellite network providing accurate global positioning, navigation, and timing.
GRN (Government Radio Network)
A secure, trunked digital radio network used by emergency services in Australian states. Ensures interoperability between agencies.
H
HF Radio (High Frequency Radio)
Operates on long-range frequencies (3–30 MHz) and can travel great distances by bouncing signals off the ionosphere. This makes it ideal for remote and off-grid operations, where there’s no mobile or internet coverage.
I
IP (Internet Protocol)
The standard for sending data across networks. Used in radio communications to link RoIP systems, dispatch consoles, and remote sites.
IP Rating (Ingress Protection)
Indicates how well equipment is protected against dust and water. For example, IP66 means dust-tight and resistant to powerful water jets.
IoT (Internet of Things)
A network of connected devices that share data in real time. In critical comms, IoT sensors use radio or satellite links for monitoring and alerts.
L
LAN (Local Area Network)
A network connecting devices within a limited area, such as a control room or vehicle. Enables fast, secure communication between radios, consoles, and servers.
LEO Satellites (Low Earth Orbit Satellites)
Orbit the Earth at low altitudes than traditional geostationary satellites. This means faster response times and stronger signal quality, making LEO ideal for real-time voice, data, and tracking applications in remote or hard-to-reach areas.
LMR (Land Mobile Radio)
Two-way radios used for public safety, transport, and utilities. Includes both VHF and UHF systems.
LOS (Line of Sight)
Direct, line-of-sight communication — reliable, fast, but limited by obstacles and distance.
LRDR (Long Range Digital Radio)
When we use LRDR, we are referring to a modernised version of HF Radio that delivers long-distance communications with clear Digital Voice.
LTE (Long Term Evolution)
Another name for 4G and 5G mobile networks. Provides high-speed voice and data when in coverage.
M
MAN (Metropolitan Area Network)
A network covering a wider urban area, typically linking multiple LANs across a city or large site. Used in transport, mining, or utility infrastructure.
P
PMR (Professional Mobile Radio)
Also known as Private Mobile Radio refers to a two-way person-to-person radio communication system that operates under the Land Mobile Service using VHF and UHF frequencies for voice transmission between portable, mobile, base, and dispatch radios.
PoC/PTToC (Push-to-Talk over Cellular)
Instead of using traditional radio frequencies, voice messages are transmitted over existing cellular and IP networks, using smartphones or dedicated PoC devices.
PTT (Push-to-Talk)
A feature that lets users press a button to instantly transmit voice over radio. PTT is the fastest way to communicate in the field, used across handhelds, vehicle units, and dispatch systems for real-time, one-to-many contact.
R
Repeater
A device that receives a radio signal and re-transmits it to extend coverage. Commonly used in UHF and VHF networks to overcome distance or obstacles such as terrain and buildings.
RF (Radio Frequency)
The part of the electromagnetic spectrum used for wireless communication. It covers a wide range of signals from very low frequencies up to microwave bands, including HF, VHF, and UHF used in radio systems.
RoIP (Radio over IP)
Technology that extends radio networks over IP networks (like the internet), allowing dispatchers and remote teams to connect across regions.
S
Satellite Communications
Provides voice and data connectivity in areas beyond terrestrial network coverage. Essential for maritime, defence, and remote operations.
Satellite Phone
A mobile phone that connects directly to satellites instead of cell towers, ensuring communication in remote and off-grid areas.
SCADA (Supervisory Control and Data Acquisition)
A system used in utilities, transport, and industry to monitor and control equipment remotely via radio or IP networks.
SmartPATCH
A Nexion device that integrates HF, VHF, UHF, LTE, and satellite into one handset and interface for seamless, unified communication.
T
Transceiver
A device that can both transmit and receive radio signals. All two-way radios are transceivers.
Trunked Radio
A radio system that dynamically assigns users to a pool of shared channels, improving efficiency. Common in government and emergency networks.
Two-Way Radio
A communication device that can both transmit and receive voice. Used across industries for instant, reliable field communication.
U
UHF Radio (Ultra High Frequency Radio)
operate between 300–3,000 MHz and are designed for short-range, high-clarity communication. Ideal for environments where signals need to cut though obstacles. Common in handheld radios and vehicle units for emergency services and logistics.
V
VaaN (Vehicle-as-a-Node)
A Mobile Communications solution that transforms a vehicle into a roaming comms hub. It integrates HF, VHF, UHF, LTE, and satellite into one interface for continuous field connectivity. Explore our Vaan solution.
VHF Radio (Very High Frequency Radio)
Operate between 30–300 MHz and are ideal for medium-range, line-of-sight communication. They perform best in open environments such as agricultural operations, transport corridors, and coastal areas, where terrain is relatively clear.
No results. Try a different keyword.